Explosion-proof observation window

Abstract

The utility model provides an explosion-proof observation window which comprises a cabinet door and an observation hole arranged in the cabinet door, a first installation block and a second installation block which are symmetrically distributed are fixedly installed on the outer side of the cabinet door, a guide rod is fixedly sleeved between the first installation block and the second installation block, and a guide sleeve is movably sleeved on the outer side of the guide rod. According to the anti-explosion observation window, the protection cover can be driven to move in the axial direction of the fixing rod while the lead screw is rotated through the handle, then the sealing gasket can be pressed, at the moment, the observation hole can be completely shielded and sealed through the sealing gasket and the protection cover, and the protection effect of the anti-explosion observation window is good; and the sealing gasket can be driven to be separated from the surface of the protection cover while the lead screw is reversely rotated, at the moment, the protection cover can be pushed through the handle, so that the protection cover can rapidly move in the axial direction of the guide rod, and the protection cover can be rapidly opened by adopting the structure; therefore, operation conditions and positions of elements in the switch cabinet can be observed through the observation holes.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof observation windows, and specifically discloses an explosion-proof observation window. Background Technique

[0002] The explosion-proof observation window of the switch cabinet is specially designed for staff to observe the operation status of the internal components of the switch cabinet. Without opening the switch cabinet door, the staff can observe the operation status and position of the internal components of the switch cabinet through the observation window.

[0003] Chinese Patent Application No. CN202323165346.0 discloses a high-voltage cabinet explosion-proof observation window, including: a cabinet door; a plurality of hinges, all of the plurality of hinges are arranged on the cabinet door; a door lock, the door lock is arranged on the cabinet door; a reinforcing rib, the reinforcing rib is arranged on the cabinet door; a sealing strip, the sealing strip is arranged on the cabinet door; an observation window mechanism, the observation window mechanism is arranged on the cabinet door, and the observation window mechanism is used for staff to observe the situation inside the high-voltage cabinet; an explosion-proof mechanism, the explosion-proof mechanism is arranged on the cabinet door; a protection mechanism, the protection mechanism is arranged on the cabinet door. The high-voltage cabinet explosion-proof observation window provided by the utility model has the advantages of safe and reliable observation effect, meeting the observation requirements for the opening and closing states of high-voltage vacuum circuit breakers and high-voltage earthing switches outside the switch cabinet, and avoiding or reducing personal injury accidents when accidents occur in the high-voltage switch cabinet, and improving the safety of the working environment.

[0004] The above-mentioned protective cover cannot be quickly opened, which is not convenient for observing the operation status and position of the internal components of the switch cabinet through the observation hole, and after the protective cover is closed, it cannot completely block and seal the observation hole, and its protection effect is poor. Content of the Utility Model

[0005] In view of the above defects or deficiencies in the prior art, the present application aims to provide an explosion-proof observation window, including a cabinet door and an observation hole opened inside the cabinet door. Symmetrically distributed first mounting blocks and second mounting blocks are fixedly installed on the outer side of the cabinet door. A guide rod is fixedly sleeved between the first mounting block and the second mounting block. A guide sleeve is movably sleeved on the outer side of the guide rod. A fixed frame is arranged on the outer side of the guide sleeve. A fixed rod is movably sleeved inside the fixed frame. A fixing plate is fixedly sleeved on the outer side of the fixed rod. And a protective cover is arranged on the outer side of the end of the fixed rod extending out of the fixing plate. A lead screw threadedly sleeved inside the fixed frame is movably sleeved inside the fixing plate. A handle is fixedly sleeved on the outer side of the end of the lead screw extending out of the fixed frame. An annular boss is arranged on the outer side of the other end of the lead screw. And a snap ring is clamped on the outer side of the end of the lead screw extending out of the fixing plate.

[0006] Preferably, both the guide sleeve and the fixing plate are provided with a cross structure.

[0007] Preferably, a sealing gasket is sleeved on the outer side of the protective cover, and a mounting groove matched with the sealing gasket is opened on the surface of the protective cover.

[0008] Preferably, a first limiting boss is provided on the surface of the protective cover, and a second limiting boss located above the observation hole is provided on the surface of the cabinet door.

[0009] Beneficial effects:

[0010] 1. The explosion-proof observation window can rotate the screw rod through the handle and drive the protective cover to move along the axial direction of the fixed rod, so as to compress the sealing gasket. At this time, the sealing gasket and the protective cover can completely block and seal the observation hole, and the protection effect is good. The sealing gasket can be driven to detach from the surface of the protective cover by rotating the screw rod in the opposite direction. At this time, the protective cover can be pushed by the handle to enable it to move quickly along the axial direction of the guide rod. With this structure, the protective cover can be quickly opened to facilitate the operation and position of the internal components of the switch cabinet through the observation hole.

[0011] 2. The explosion-proof observation window, through the cooperation of the first limiting boss and the second limiting boss, enables the first limiting boss to be stuck above the second limiting boss during the process of tightening the screw rod to compress the sealing gasket, and then the protective cover can be limited by the cooperation of the two, thereby reducing the wear of the sealing gasket and preventing the protective cover from falling off automatically. This structure enables the observation hole to be effectively shielded and protected through the cooperation of the protective cover and the sealing gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0013] Figure 1 This is a schematic diagram of the protective cover of the utility model structure being opened;

[0014] Figure 2 This is a schematic diagram of the closed protection cover of the utility model structure;

[0015] Figure 3 It is a schematic diagram of the fixing plate of the utility model;

[0016] Figure 4 It is a schematic diagram of the fixing frame of the utility model;

[0017] Figure 5 It is a schematic diagram of the protective cover of the utility model;

[0018] Figure 6 It is a side schematic diagram of the protective cover of the utility model;

[0019] Figure 7 is Figure 1 an enlarged schematic view of the structure at position A in

[0020] In the figure: 1. Cabinet door; 2. Observation hole; 3. First mounting block; 4. Second mounting block; 5. Guide rod; 6. Guide sleeve; 7. Fixed frame; 8. Fixed rod; 9. Fixed plate; 10. Protective cover; 11. Screw rod; 12. Handle; 13. Annular boss; 14. Snap ring; 15. Sealing gasket; 16. Mounting groove; 17. First limit boss; 18. Second limit boss. Specific embodiments

[0021] The following further details the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model and are not intended to limit the utility model. Additionally, it should be noted that for ease of description, only the parts related to the utility model are shown in the drawings.

[0022] The drawings in the embodiments of the present utility model: Different types of hatching lines in the figure are not marked according to national standards, nor are the materials of the components required. They are used to distinguish the cross-sectional views of the components in the figure.

[0023] Please refer to Figures 1-7 , an explosion-proof observation window, including a cabinet door 1 and an observation hole 2 opened inside the cabinet door 1. Symmetrically distributed first mounting blocks 3 and second mounting blocks 4 are fixedly installed on the outer side of the cabinet door 1. A guide rod 5 is fixedly sleeved between the first mounting block 3 and the second mounting block 4. Through the cooperation of the first mounting block 3, the second mounting block 4 and the guide rod 5, the guide sleeve 6 can move along the axial direction of the guide rod 5, thereby enabling the rapid opening and closing of the protective cover 10. The outer side of the guide rod 5 is movably sleeved with a guide sleeve 6. A fixed frame 7 is arranged on the outer side of the guide sleeve 6. A fixed rod 8 is movably sleeved inside the fixed frame 7. A fixed plate 9 is fixedly sleeved on the outer side of the fixed rod 8. And a protective cover 10 is arranged on the outer side of the end of the fixed rod 8 extending out of the fixed plate 9. A screw rod 11 threadedly sleeved inside the fixed frame 7 is movably sleeved inside the fixed plate 9. A handle 12 is fixedly sleeved on the outer side of the end of the screw rod 11 extending out of the fixed frame 7. An annular boss 13 is arranged on the outer side of the other end of the screw rod 11. The screw rod 11 can be limited by the annular boss 13, so that the screw rod 11 can press the protective cover 10 through the cooperation of the annular boss 13 and the fixed plate 9 during the tightening process. And a snap ring 14 is clamped on the outer side of the end of the screw rod 11 extending out of the fixed plate 9. The snap ring 14 can limit the screw rod 11 and prevent the screw rod 11 from falling off the inside of the fixed plate 9 during rotation.

[0024] Among them, both the guide sleeve 6 and the fixed plate 9 are provided with cross structures. By setting the guide sleeve 6 and the fixed plate 9 as cross structures, the pressure generated around the protective cover 10 during the tightening process of the lead screw 11 is relatively uniform, and thus the gasket 15 can be tightly sealed through the protective cover 10.

[0025] Among them, a gasket 15 is sleeved outside the protective cover 10, and an installation groove 16 adapted to the gasket 15 is provided on the surface of the protective cover 10. Through the installation groove 16, the gasket 15 can be limited while enabling the lead screw 11 to prevent the protective cover 10 from moving through the frictional force generated between the gasket 15 and the cabinet door 1 after being tightened, and the gasket 15 will not fall off from the outside of the protective cover 10 when subjected to the frictional force.

[0026] Among them, a first limiting boss 17 is provided on the surface of the protective cover 10, and a second limiting boss 18 located above the observation hole 2 is provided on the surface of the cabinet door 1. Through the cooperation of the first limiting boss 17 and the second limiting boss 18, when the protective cover 10 is in the highest position, the first limiting boss 17 can be located above the second limiting boss 18. At this time, during the process of tightening and sealing the gasket 15 by rotating the lead screw 11, the first limiting boss 17 can be stuck above the second limiting boss 18, and thus the protective cover 10 is limited and supported through their cooperation to prevent the protective cover 10 from moving and reducing the wear of the gasket 15 caused by the frictional force.

[0027] When observing the operation conditions and positions of the internal components of the switch cabinet, the lead screw 11 is loosened through the handle 12. At this time, the rotation of the lead screw 11 can drive the protective cover 10 to move along the axial direction of the fixed rod 8 while the gasket 15 completely disengages from the surface of the cabinet door 1. After the first limiting boss 17 completely disengages from above the second limiting boss 18, the limit of the second limiting boss 18 on the protective cover 10 is released at this time. The protective cover 10 is pushed through the handle 12 to move it downward along the axial direction of the guide rod 5. When the protective cover 10 is displaced to the lowest point position, the observation hole 2 is completely opened. At this time, the operation conditions and positions of the internal components of the switch cabinet can be observed through the observation hole 2. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0028] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will detail this application with reference to the drawings and in combination with the embodiments.

[0029] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the present application.

Claims

1. An explosion-proof observation window, comprising a cabinet door (1) and an observation hole (2) opened inside the cabinet door (1), characterized in that: On the outer side of the cabinet door (1), symmetrically distributed first mounting blocks (3) and second mounting blocks (4) are fixedly installed. A guide rod (5) is fixedly sleeved between the first mounting block (3) and the second mounting block (4). A guide sleeve (6) is movably sleeved on the outer side of the guide rod (5). A fixing frame (7) is arranged on the outer side of the guide sleeve (6). A fixing rod (8) is movably sleeved inside the fixing frame (7). A fixing plate (9) is fixedly sleeved on the outer side of the fixing rod (8). And a protective cover (10) is arranged on the outer side of one end of the fixing rod (8) extending out of the fixing plate (9). A lead screw (11) threadedly sleeved inside the fixing frame (7) is movably sleeved inside the fixing plate (9). A handle (12) is fixedly sleeved on the outer side of one end of the lead screw (11) extending out of the fixing frame (7). An annular boss (13) is arranged on the outer side of the other end of the lead screw (11). And a snap ring (14) is clamped on the outer side of one end of the lead screw (11) extending out of the fixing plate (9).

2. The explosion-proof observation window according to claim 1, characterized in that: Both the guide sleeve (6) and the fixing plate (9) are provided with cross structures.

3. An explosion-proof observation window according to claim 1, characterized in that: A sealing gasket (15) is sleeved on the outer side of the protective cover (10). And a mounting groove (16) adapted to the sealing gasket (15) is formed on the surface of the protective cover (10).

4. The explosion-proof observation window according to claim 1, characterized in that: A first limiting boss (17) is arranged on the surface of the protective cover (10). A second limiting boss (18) located above the observation hole (2) is arranged on the surface of the cabinet door (1).

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